16 Nov Magnolia Seed Harvesting

Fall is a busy time in the Wister Center Greenhouse. Volunteers work on a variety of jobs including taking cuttings of tender and tropical plants; potting up cuttings; overwintering succulent plants and this year they have been busy harvesting magnolia seeds to contribute to the Magnolia Society International’s seed exchange, The Seed Counter.

Once the follicles open up and reveal the seed which is often red and covered in a waxy coat, the seed can be harvested.

Once removed from the follicles, seeds are soaked for three days. photo credit: J. Coceano

After the seeds are harvested, they are soaked in water for three days in order to loosen the seed coat. Our volunteers found the most effective way to remove the seed from the seed coat after soaking was to squeeze the fruit. The seed simply squirts out of the fruit.

Cleaned seeds are allowed to dry for a day. photo credit: J. Coceano

The seeds are then dried for a day or two. The seeds are packaged in slightly moist vermiculite and refrigerated. Do not store the seeds dry, because they rapidly lose viability under those conditions.

The moist seeds are stratified for 2 to 4 months at 32 to 41 degrees Fahrenheit before planting. You can also fall- plant the seeds outdoors to allow nature to provide the cool, moist conditions for stratification.

Throughout the process it is important to keep the name and the source with the seed. Those who subscribe to the Magnolia Society’s seed exchange will make their selections based on species and source. To learn more about the Magnolia Society International and to participate in the seed exchange go to: www.magnoliasociety.org. Also, consider attending the next annual meeting in the Bay Area and Sonoma Valley.

Hi
I am an artist in Maine where I make rustic creations. I like using these magnolia seed pods which I collected when I used to live in PHila but I haven’t been able to identify nor have I found any growing up here. I have an image of them but I don’t seem to be able to include it in this email format…can you tell me where I can senbd it so you can see it? Also, Can you tell me what they are and do you know where there are some of these trees growing so I can search out the pods next fall? Do you have them at Scott Arboretum or somewhere nearby? I THINK its m. Kobus…
Thanks so much for your thoughts!
Vicki Fox
Green Team Gardeners
207.422.2324
215.205.9949

Jan

done with the harvesting and they’ve been in the fridge since november. but where do i plant them? just in the ground outside (live in vancouver, bc), or in a pot in the house first?
help, please and thank you!

Andrew Bunting

The seeds should either stay in cold storage until the spring or you could plant them in pots now and put them outside for the winter. It will be important to have to pots protected from rodents however. In the spring the seedlings should start to germinate and you can then separate them out into individual pots.

Andrew Bunting, Curator

Vinh Nguyen

Hi,
I’m in Vietnam and I’m interested in collecting the different cultivar of Magnolia Grandiflora. I wonder where can I get these seeds? I tried the magnolia society link you provided but it’s not working.
Many thanks for a great post on seed collection.
Vinh Nguyen

Cheryl Bolt

sara

Hey i live in springfield mo and have always wanted a magnolia tree. my husband brought a pod home but its not bursting with the red seeds. can this be planted or is there anyway to extract the seeds for germination?

Gregg

Sara, I also brought a pod home early before the seeds were showing.So I decided to do a little experimentation, as I love to do when cultivating and sure enough it worked. If there’s still enough of a stem on it cut the bottom 2-3 inches off a pint spring water bottle fill with enough water to come up the stem about an inch or so place in a good sunny window in 5-7 days the red seeds will pop like it’s still on the tree. If urs is already dried out might not work. But just grab another fresh pod off a tree and get going.

Paula Reif

I live in so Indiana and have a magnolia tree full of seeds in my yard. I want to use the red seed for beads, but have not found anything to keep them hard and bright red.
I’ve sprayed them with polyurethane , but once I poke the hole to string, they start turning black.
Any ideas would be appreciated.
Thanks, paula

Jan

Question: How ripe do the pods/cones have to be before I can remove them from the tree, or do I have to wait for them to drop? I am competing with a squirrel & bird population who seem to always be able to get to them before I do! Can I take them off while they’re still green, and ripen them artificially in an area not accessible to the critters? Thanks in advance!

Gabriel Mendoza

Mary McCandless

We have a large magnolia tree in our front yard. These last few days we have picked up 70 a day. We have been throwing them away. Seem like a big waste to me. I would gladly save them if somebody near by has a use for them. I live in Gulfport,MS. One year my Dad picked up close to 2000 of them.

Janie

I live in the northwest of England, (Cheshire, good farming land) and my Magnolia Stellata has provided seeds for the first time in 8 years and I’m hoping to grow them for family and friends. Its now October here and I’ve just harvested the small cones with red seeds nestling in them I will follow your info as to how to get the seeds out etc, me question to you is; when should I plant them, winter is just around the corner and predictions for the U.K say we’re in for a long whiteout winter. Can i store the seeds until spring if so how do I stop them from drying out or deteriorating in moist conditions until spring? Thank you in advance for any help

Magnolia seed has the best germination rates when harvested, cleaned, and sown as soon as possible. Fresh seed is the way to go! Magnolia stellata needs a cold period (at least 2 to 3 months) for germination. I sow freshly cleaned seed in rounds (multiple seeds per pot) and place in a critter-proof frame outdoors (chipmunks, squirrels, and other animals love to eat the seed and/or dig through the rounds to bury their nuts). Come spring you should be rewarded with young stellata seedlings. The Reference Manual of Woody Plant Propagation by Dirr and Heuser, Jr. is a great resource as is the Magnolia Society International website. Happy germinating!

Hi just wondering if the flower has to be pollinated to produce seeds because my neighbours tree has only had one seedod that made seeds. I know that most flowers need to be pollinated to do this and i was hoping that i could hand pollinate them.

Thankyou!

Kim

I found some dried seed pods in the woods around my house in WV. I guess these are called Mountain Magnolia. I don’t think they are very common as wild trees in this area. I am so excited to wait for the trees around the pods to bloom and possibly get some fresh pods this fall. Any advice is appreciated!

Burch

I have a large old magnolia in my yard and its blooming and dropping seed pods right now. I’m a little confused because they’re either green pods, with soft green seeds inside (if broken up) or brown with flat dried up looking seeds. Neither are showing red seeds. Will it work to break open the green pods and plant the green seeds or is there another time of year when it’ll produce pods with red seeds? Thanks!

Joanne

I live in Texas and am going to try to grow some magnolia trees from seed. I just brought in two pods and removed the red coating and was surprised to see that my seeds were tan not black. Will they turn black as they dry? Is this a different variety perhaps?

Each species of Magnolia seed varies ever so slightly in color. Tan, light brown, and gray seeds all occur. The trick for successful sowing and germination is to sow seed immediately after removing the fleshy red fruit (or refrigerate until you can sow). Cleaned magnolia seed doesn’t like to dry out. Good luck!